Home / 81,543.56-122,327.50-28,948.64

Finding the Fourth Proportional to 81,543.56, 122,327.50 and 28,948.64

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Solution

The fourth proportional to 81,543.56, 122,327.50 and 28,948.64 is: 43,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,543.56 : 122,327.50 = 28,948.64 : x
  2. Step 2: Convert to fraction form
    81,543.56/122,327.50 = 28,948.64/x
  3. Step 3: Cross multiply
    81,543.56x = 122,327.50 × 28,948.64
  4. Step 4: Simplify right side
    81,543.56x = 3,541,214,759.60
  5. Step 5: Solve for x
    x = 3,541,214,759.60/81,543.56
  6. Step 6: Final answer
    x = 43,427.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.